from django.db import models
from django.urls import reverse


class Category(models.Model):

    """ Модель представляющая категорию продукта """

    name = models.CharField(max_length=200, db_index=True)
    slug = models.SlugField(max_length=200, unique=True)

    class Meta:

        ordering = ('name',)
        verbose_name = 'Категория'
        verbose_name_plural = 'Категории'


    def __str__(self):

        return self.name


class Product(models.Model):

    """ Модель представляющая продукт """

    category = models.ForeignKey(Category,
                                 on_delete=models.CASCADE, 
                                 related_name='products')
    name = models.CharField(max_length=200, db_index=True)
    slug = models.SlugField(max_length=200, db_index=True)
    image = models.ImageField(upload_to='products/%Y/%m/%d', blank=True)
    description = models.TextField(blank=True)
    price = models.DecimalField(max_digits=10, decimal_places=2)
    available = models.BooleanField(default=True)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)

    class Meta:

        ordering = ('name',)
        verbose_name = 'Продукт'
        verbose_name_plural = 'Продукты'


    def __str__(self):

        return self.name


    def get_absolute_url(self):

        return reverse('shop:product_detail', args=[self.id, self.slug])
